NAD M3 Service Manual

Also see for M3 C/AH: Service manual

NAD M3 Service Manual Manual pdf 26 page image

C40733P/250VC4021NC40533P/250VC425470pFR40222KR403100R412100R404100R41327KR40527KR414100R406100Q4132SA1837Q4102SA1360Q4092SA1015Q4052SA1015Q4072SA970Q4062SA970Q4012SA970Q4112SA3423Q4122SC1815Q4082SC1815Q4042SC2240Q4032SC2240Q4022SC2240R40833R42033R45910/2W FSR41510KR42382 FP 1/2WR42139KR41721/1/4W 1%R4191K2 3W 1%R40782R41622KR428300R41110KR41022KR426 100KR424100KR40982 FP 1/2WD4031N4148D4041N4148D4061N4148D4051N4148C408330P Q4142SC4793R4303R3/0.5W FPR432330/0.5W FPR4344K7/3W FPR4383R3/0.5W FPR441330/0.5W FPR4444K7/3W FPR43718R42918R4314R7/FSR4394R7/FSR4451K2 1%R4461K 1%Q415KSC2690Q4172SC4793Q4242SC5200Q4222SC5200Q4182SA1837R4570.05/5WR4560.05/5WR44815R44915R44210KR43310KQ4212SA1943Q4232SA1943C4180.1uF+74V-74V+72V-72VR401470AGNDAGNDAGND GNDGNDC40310uF/50VC40410uF/50VC411100UF/25VC412100u/25VR43510KR44310KC4160.1uFC4170.1uFC4090.1uFC4100.1u/80VAGNDAGNDQ4262SA970Q425C2240R4646K8C4214u7/50VR46322KR4611KR46256KC42022ND409BV21Q4272SA1943Q4282SC5200SPGNDR4221K2 3W 1%GND2 31IC402TL4312 31IC401TL4311VR401200R447220Q4162SA1015C42210uF/80VC42310uF/80VGNDGNDR476220KR47782C41510uF/50VR42539KR4802.2R4822.2R4842.2R4862.2Q4192SA1943Q4202SC5200R4812.2R4832.2R4852.2R4872.2C426470pF R45122GNDR450220KC41910uF/50V Q4372SC4793R4881R4891Q4382SA1837R4911R4901C4280.1uFIC403ATL082D C4271uFR4521MR453680AGNDR4954K7/3W FPR4964K7/3W FPC4291uFR4541MAGNDAGNDR418100L401100uHRL402ARL402BRL401BRL401AR4993R3/1W FPL4021uHC44022NPRGNDR47156KC431330u/16VC4320.22uR46956KC43347u/50VGND12 3 45678 IC404*uPC1237HA+V24RR4682K2R46710KPRGNDQ4502SA1015R475200R4743K3R4703K3R473100KR472N.I.Q4522SC1815Q4532SC1815D4141N4148D4151N4148R47910KR47810KPRGNDPRGNDSPGND12345678910CZ402CON10AC DETPROTECTRT401T0=80 degree CPRGNDSPK ASPK BB401THERMAL BREAKERR4930R4920D4121N4148D4131N4148R494N.I.12CZ401CON2AGNDIC403BTL082DAGNDGND-74V+74VR CHANNEL AMP+72V-72VPRGNDQ4542SA1015R466100KR49810KR497100KPRGNDPRGNDR42720KD40118VD40218VC4010.1uFC4060.1uFR45510K/0.6WR45810K/0.6W+72V-72VQ4292SC2878AGNDQ4302SC2240R411KR421K2Q4312SC3423Q4322SA1360R4310R4410C4140.1uF+V24R1 P401PCBNUT1 P402PCBNUT1 P403PCBNUTD4231N4148D4223.6VD4243.6VD4251N4148D4171N4148D4181N4148D4211N4148D4201N4148D416LEDD419LEDD42712VD4261N4148C4342.2uF/50VC4352.2uF/50VR45200KGNDD4111N4148R47200KR464.7KAGND12345678CZ403CON8C30733P/250VC3021NC30533P/250VC325470pFR30222KR303100R312100R304100R31327KR30527KR314100R306100Q3132SA1360Q3102SA1360Q3092SA1015Q3052SA1015Q3072SA970Q3062SA970Q3012SA970Q3112SC3423Q3122SC1815Q3082SC1815Q3042SC2240Q3032SC2240Q3022SC2240R30833R32033R35910/2W FSR31510KR32382 FP 1/2WR32139KR31721/1/4W 1%R3191K2 3W 1%R30782R31622KR328300R31110KR31022KR326100KR324100KR30982 FP 1/2WD3031N4148D3041N4148D3061N4148D3051N4148C308330P Q3142SC3423R3303R3/0.5W FPR332330/0.5W FPR3344K7/3W FPR3383R3/0.5W FPR341330/0.5W FPR3444K7/3W FPR33718R32918R3314R7/FSR3394R7/FSR3451K2 %1R3461K 1%Q315KSC2690Q3172SC4793Q3242SC5200Q3222SC5200Q3182SA1837R3570.05/5WR3560.05/5WR34815R34915R34210KR33310KQ3212SA1943Q3232SA1943C3180.1uF+V74-V74+72V-72VR301470AGNDAGNDAGNDAGNDGNDGNDC30310uF/50VC30410uF/50VC311100UF/25VC312100u/25VR33510KR34310K C3160.1uFC3170.1uFC3090.1uFC3100.1u/80VAGNDAGNDQ3262SA970Q325C2240R3646K8C3214u7/50VR36322KR3611KR36256KC32022ND309BAV21 R36510KQ3272SA1943Q3282SC5200SPGNDR3221K2 3W 1%GND1VR301200R347220Q3162SA1015C32210uF/80VC32310uF/80VGNDGNDADJ DCR376220KR37782C31510uF/50VR32539KR3802.2R3822.2R3842.2R3862.2Q3192SA1943Q3202SC5200R3812.2R3832.2R3852.2R3872.2C326470pF R35122GNDR350180KC31910uF/50V Q3372SC4793R3881R3891Q3382SA1837R3911R3901C3280.1uFIC303BTL082DC3271uFR3521MR353680AGNDR3954K7/3W FPR3964K7/3W FPC3291uFR3541MAGNDAGNDR318100L301100uHRL302ARL301AR3993R3/1W FPL3021uHC34022NPRGNDR37156K C331330u/16VR3682K2GNDSPGND12345678910CZ302CON10AC DETPROTECTRT301T0=80 degree CPRGNDSP ASP B12CZ301CON2 AGNDGND-V74 +V74L CHANNEL AMP+72V-72VR32720KRL302BRL301BC3320.22uR36956KC33347u/50VPRGND12 3 45678 IC304*uPC1237HA+V24RQ3502SA1015R375200R3743K3R3703K3R373100KR372N.I.Q3522SC1815Q3532SC1815D3141N4148D3151N4148R37910KR37810KPRGNDPRGNDB301THERMAL BREAKERR3930R3920D3121N4148D3131N4148R394N.I.PRGNDQ3542SA1015R366100KR39810KR397100KPRGNDPRGNDIC303ATL082D AGNDD30118VD30218VC3010.1uFC3060.1uFR35510K/0.6WR35810K/0.6W+72V-72VQ3292SC28782 31IC301TL4312 31IC302TL431Q3302SC2240R311KR321K2Q3312SC3423Q3322SA1360R3310R3410C3140.1U+V24R1 P301PCBNUT1 P302PCBNUT1 P303PCBNUTD3171N4148 D3181N4148D316LEDD3211N4148D3201N4148D319LEDD3231N4148D3223.6VD3243.6VD3251N4148D32712VD3261N4148C3342.2uF/50VC3352.2uF/50VR35200KD3111N4148R37200KR364.7KAGNDGND12345678CZ303CON8to HS4-M3-B007 PSU VC4.0.SCH CZ703to HS4-M3-B007 PSU VC4.0.SCH CZ603to the binding postto HS4-M3-B007 PSU VC4.0.SCHP701 P702 P703to HS4-M3-B007 PSU VC4.0.SCHP601 P602 P603to the binding postto HS4-M3-B007 PRE VC4.0.SCH J203to HS4-M3-B007 PRE VC4.0.SCH J103PRGND1 P304PCBNUTSPGND1 P304PCBNUTSPGNDPRGNDRxl2R2Rxr2R2Cxl0.1uF/50VCxr0.1uF/50VNote:Cxr+Rxr network is between thechassis and the de-coupling groundwith the minimum loop.Note:Cxl+Rxl network is between the chassisand the de-coupling ground with theminimum loop.D408 BAV21D407BAV21-74VR4A61K R4A5 6K352 31IC405TL431Q4562SC2240R4A31KQ4552SA970R4A21K2D4401N4148 R4A11KR4A410KR4A717K3+74VD308 BAV21D307BAV21-74VR3A61K R3A5 6K352 31IC305TL431Q3562SC2240R3A31KQ3552SA970R3A21K2D3401N4148 R3A11KR3A410KR3A717K3+74VR3B10.1R 1W 5%R3B20.1R 1W 5%R3B30.1R 1W 5%R3B40.1R 1W 5%R3B50.1R 1W 5%R3B60.1R 1W 5%R3B70.1R 1W 5%R3B80.1R 1W 5%R4B10.1R 1W 5%R4B20.1R 1W 5%R4B30.1R 1W 5%R4B40.1R 1W 5%R4B50.1R 1W 5%R4B60.1R 1W 5%R4B70.1R 1W 5%R4B80.1R 1W 5%CIRCUIT DIAGRAMS1.POWER AMPLIFIER BOARD3-12*IC 304 and IC 404 replaced by Protect ModuleR1956kR10100kQ132SC1815GRQ142SC1815GR12345678J10CON8D101N4148R1510KQ102SA1015GRR1610kR11100kR1310kQ152SC1815GRR22820kR20220kQ162SC1815GR Q172SC1815GRR254.7kR24180kQ112SA1015GRR1210kR21220kQ182SC1815GRQ122SA1015GRR17100kD121N4148R18100kR1422kC101ND134.7V C11100NProtect ModuleQ192SC1815R2356KR2610kC120.22UFR2710kR2810kReplace and change orientation for the parts below:C601 & C701 From 4.7uF/50V to 0.47uF/50V.Reverse mount C601 & C701.Remove the parts below:R369 & R469 Remove the 56K Ohm resistor.Replace the parts below:R370 & R470 From 6.8K Ohm to 5.1K Ohm.Change orientation for the parts below:D601 & D701 Reverse mount the 1N4148.